PerkinElmer AVIO 200, Hardware Manual

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51
Decontamination and Cleaning
Fusion Mixtures
Dissolving a sample by reacting with a fusion-flux mixture is generally chosen
when other techniques for sample dissolution fail. The fusion-flux mixture should
be carefully selected. Knowledge of fusion-flux mixture/crucible compatibility is
essential. Heating the sample-flux mixture may initiate a vigorous or explosive
reaction.
• Heat the mixture slowly and intermittently until the system is characterized.
• If you use a muffle furnace rather than a flame for heating, make a trial using
the standard amount of flux but with a smaller amount of sample.
• Most reacted fusion mixtures are dissolved in acidic solutions. Observe the
precautions described previously for handling acids.
Decontamination and Cleaning
Before using any cleaning or decontamination methods except those specified by
PerkinElmer, users should check with PerkinElmer that the proposed method will
not damage the equipment.
Decontamination
Customers wishing to return instrumentation and/or associated materials to
PerkinElmer for repair, maintenance, warranty or trade-in purposes are
advised that all returned goods must be certified as clean and free from
contamination.
Caution
The fusion matrix will deposit on and dissolve the quartz torch over time.
It is recommended to use the unslotted (0 slots) torch because the
slotted torches will dissolve much faster.
Attention: La matrice de fusion déposera sur et dissoudre le flambeau de
quartz au cours du temps.
Il est recommandé d'utiliser la non fendue (0
fentes) torche parce que les torches fendues vont se dissoudre
beaucoup plus vite.